Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires
By recording the super-resolved positions of fluorescent product molecules, we reveal locational heterogeneity on the surface of copper nanowire catalysts with single-particle sensitivity and single-turnover resolution. This unveils a gradient activity along the length of nanowire, a result we found...
Saved in:
Main Authors: | , , , , , |
---|---|
Other Authors: | |
Format: | Conference or Workshop Item |
Language: | English |
Published: |
2020
|
Subjects: | |
Online Access: | https://hdl.handle.net/10356/144277 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Institution: | Nanyang Technological University |
Language: | English |
id |
sg-ntu-dr.10356-144277 |
---|---|
record_format |
dspace |
spelling |
sg-ntu-dr.10356-1442772022-08-03T05:50:49Z Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires Ow, Matthew Jun Kit Ng, Jia Jun Yong, Jian Xiong Quek, Benjamin Yi Liang Yeow, Edwin Kok Lee Zhang, Zhengyang Asian Spectroscopy Conference 2020 Institute of Advanced Studies Science::Chemistry Super-resolution Microscopy Heterogeneous Catalysis By recording the super-resolved positions of fluorescent product molecules, we reveal locational heterogeneity on the surface of copper nanowire catalysts with single-particle sensitivity and single-turnover resolution. This unveils a gradient activity along the length of nanowire, a result we found to be due to the underlying gradient of unsaturated surface site density resulting from their linear decay in growth rate during synthesis. Within the nanowire, we observed site-specific activity at different regions, where the ratios between the activity at the end regions and side facets are dependent on the length of the nanowire. Examining the single-molecule turnover rate allows for functional interrogations of nanocatalysts at the nanoscale. Published version 2020-10-26T07:45:52Z 2020-10-26T07:45:52Z 2020 Conference Paper Ow, M. J. K., Ng, J. J., Yong, J. X. Quek, B. Y. L., Yeow, E. K. L., & Zhang, Z. (2020). Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires. Proc. Of the 7th Asian Spectroscopy Conference (ASC 2020). doi:10.32655/ASC_8-10_Dec2020.35 https://hdl.handle.net/10356/144277 10.32655/ASC_8-10_Dec2020.35 en © 2020 Nanyang Technological University. application/pdf |
institution |
Nanyang Technological University |
building |
NTU Library |
continent |
Asia |
country |
Singapore Singapore |
content_provider |
NTU Library |
collection |
DR-NTU |
language |
English |
topic |
Science::Chemistry Super-resolution Microscopy Heterogeneous Catalysis |
spellingShingle |
Science::Chemistry Super-resolution Microscopy Heterogeneous Catalysis Ow, Matthew Jun Kit Ng, Jia Jun Yong, Jian Xiong Quek, Benjamin Yi Liang Yeow, Edwin Kok Lee Zhang, Zhengyang Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
description |
By recording the super-resolved positions of fluorescent product molecules, we reveal locational heterogeneity on the surface of copper nanowire catalysts with single-particle sensitivity and single-turnover resolution. This unveils a gradient activity along the length of nanowire, a result we found to be due to the underlying gradient of unsaturated surface site density resulting from their linear decay in growth rate during synthesis. Within the nanowire, we observed site-specific activity at different regions, where the ratios between the activity at the end regions and side facets are dependent on the length of the nanowire. Examining the single-molecule turnover rate allows for functional interrogations of nanocatalysts at the nanoscale. |
author2 |
Asian Spectroscopy Conference 2020 |
author_facet |
Asian Spectroscopy Conference 2020 Ow, Matthew Jun Kit Ng, Jia Jun Yong, Jian Xiong Quek, Benjamin Yi Liang Yeow, Edwin Kok Lee Zhang, Zhengyang |
format |
Conference or Workshop Item |
author |
Ow, Matthew Jun Kit Ng, Jia Jun Yong, Jian Xiong Quek, Benjamin Yi Liang Yeow, Edwin Kok Lee Zhang, Zhengyang |
author_sort |
Ow, Matthew Jun Kit |
title |
Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
title_short |
Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
title_full |
Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
title_fullStr |
Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
title_full_unstemmed |
Super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
title_sort |
super-resolution fluorescence microscopy reveals nanoscale catalytic heterogeneity on single copper nanowires |
publishDate |
2020 |
url |
https://hdl.handle.net/10356/144277 |
_version_ |
1743119511549116416 |